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Description
Simpson Strong-Tie SWD221034DBB-R30 Strong-Drive (0.235-in x 10-3/4-in) Double-Threaded Screw,T40 Black (30 Pack)Simpson Strong Tie SWD221034DBB R30 Description The Strong Drive SWD Double Threaded Screw is a high performance structural fastener engineered for exterior wood to wood applications, including deck ledgers and general framing. Simpson Strong Tie SWD221034DBB R30 Includes (30) Double Threaded Wood Screw Simpson Strong Tie SWD221034DBB R30 Features Professional grade engineered for strength, versatility, and reliability Double thread design and smooth
Simpson Strong-Tie SWD221034DBB-R30 Description
The Strong-Drive SWD Double-Threaded Screw is a high-performance structural fastener engineered for exterior wood-to-wood applications, including deck ledgers and general framing.
Simpson Strong-Tie SWD221034DBB-R30 Includes
- (30) Double-Threaded Wood Screw
Simpson Strong-Tie SWD221034DBB-R30 Features
- Professional grade engineered for strength, versatility, and reliability
- Double-thread design and smooth mid-shank pull members together securely
- Black, exterior-grade, double-barrier coating for corrosion resistance
- Chisel point provides easy driving for angled installation and reduced splitting
- Compact cylinder head design for low visibility, concealed installations
- 6-lobe driver bit for secure driving
- Code listed and load rated for structural applications
Simpson Strong-Tie SWD221034DBB-R30 Applications
- Deck ledger attachments to rim joists
- General exterior wood framing
- Pergolas, porches, and outdoor structural assemblies
- Wood-to-wood connections where high withdrawal strength is required
Simpson Strong-Tie SWD221034DBB-R30 Installation Overview
- No pre-drilling required in most applications, thanks to its screw chisel point
- Use with a standard driver or impact driver
- For best results, drive the screw until the head is flush with the wood surface—avoid overdriving
- Can be used with treated lumber, following coating compatibility guidelines
Simpson Strong-Tie SWD221034DBB-R30 Specifications
| Diameter | 0.235" |
| Finish | Double-Barrier Coating |
| Length | 10-3/4" |
| Material | Carbon Steel |
| Color | Black |
| Drive type | T40 6-Lobe |
| Head diameter | 0.394" |
| Head type | Cylinder Head |
| Point type | Screw Chisel Point |
| Quantity | 30 |
| Shank style | Unthreaded Mid-Shank |
| Thread length | 4-1/4" |
| Thread type | Double Thread |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Comfortable and stays cool
Color: White-cooling Basic, Size: Queen(Pack of 1)
Great pillow. When i opened it, i noticed a strange smell, i assumed its the smell of whatever they use to make the pillow stay cool. You have to fluff it for a good amount of time to make sure the cooling agent spreads well in the foam. Is what i assumed atleast. Its a perfect amount of softness for me. Pair it with some bamboo pillow cases and you got a good night of sleep
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Reviewed in the United States on May 9, 2026
★★★★★ 5
BEST, MOST COMFORTABLE PILLOWS EVER!
Color: White-cooling Basic, Size: Queen(Pack of 2)
I've used others.BEST PILLOWS EVER! Firm, cooling and supportive. LOVE THESE!
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Reviewed in the United States on May 28, 2026
★★★★★ 4
Comfortable and Supportive, but Adjust the Filling
Color: White-cooling Basic, Size: Queen(Pack of 2), Color: White-cooling Basic, Size: Queen(Pack of 2)
I’m very happy with this pillow. The size is big and it feels soft while still providing good support, perfect for midnight scrolling on TikTok.
One thing to keep in mind is that it can feel a little too tall if you use all of the filling that comes with it. The good news is that you can easily adjust the amount of filling to find the height that works best for your sleeping position. Once I customized it, it was much more comfortable.
Overall, great quality, comfortable, and worth the purchase.
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Reviewed in the United States on June 3, 2026
★★★★★ 5
BEST PILLOWS EVER!!!
Color: White-cooling Basic, Size: Queen(Pack of 2)
I am very picky with my pillows because I have a bad neck and I can never seem to find a good pillow. But I tried this pillow because it had everything I was looking for and the price was great! You get two of them and they are absolutely awesome.! normally I would need to lay on two pillows to try and get comfortable but with these pillows I just lay on one and I wake up with no neck pain. They really have a nice cooling effect. They actually puff up immediately after opening them. All you have to do is just shake them up and the pillow just puffs straight up.. It comes with extra cushioning if you want it to make it firmer and if you don’t want it as firm as it is, you can actually take some out. It really is such a beautiful pillow. It’s perfect in every way to me being such a picky pillow person.
You just lay your head down on it and it forms around your neck and your head and when you get up, it goes right back to its normal form. It doesn’t get flat and I love it. I completely recommend this to anyone who is a person who has a hard time finding a really good pillow.
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Reviewed in the United States on April 12, 2026
★★★★★ 5
Top of the line, best pillows Ive ever had
Color: White-cooling Basic, Size: Queen(Pack of 2)
These pillows are top of the line! I bought them in 2024 and they are still fluffy. When they lose a little fluff, you just punch em around a little bit and voila, like new again. They have kept their shape cery well and do great for cooling. I haven't had to add more filling yet either. I just laid my head on one and thought, I need to do a review cause everytime i lay on these pillows its like clouds. My head is heavy and this is relief :-D
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Reviewed in the United States on May 21, 2026